dom/canvas/test/webgl-conf/checkout/conformance/more/functions/vertexAttribBadArgs.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <meta charset="utf-8">
   5 <!--
   6 Copyright (c) 2019 The Khronos Group Inc.
   7 Use of this source code is governed by an MIT-style license that can be
   8 found in the LICENSE.txt file.
   9 -->
  10 <link rel="stylesheet" type="text/css" href="../unit.css" />
  11 <script type="application/javascript" src="../unit.js"></script>
  12 <script type="application/javascript" src="../util.js"></script>
  13 <script type="application/javascript">
  14
  15 var verts = [0.0, 0.0, 0.0,   1.0, 0.0, 0.0,   0.0, 1.0, 0.0];
  16 var normals = [0.0, 0.0, 1.0,   0.0, 0.0, 1.0,   0.0, 0.0, 1.0];
  17 var texcoords = [0.0,0.0,  1.0,0.0,  0.0,1.0];
  18
  19 Tests.startUnit = function () {
  20   var canvas = document.getElementById('gl');
  21   var gl = wrapGLContext(getGLContext(canvas));
  22   var prog = new Shader(gl, 'vert', 'frag');
  23   prog.use();
  24   var sh = prog.shader.program;
  25 //   log(gl.getShaderInfoLog(prog.shaders[1]));
  26   var v = gl.getAttribLocation(sh, 'Vertex');
  27   var n = gl.getAttribLocation(sh, 'Normal');
  28   var t = gl.getAttribLocation(sh, 'Tex');
  29   return [gl,prog,v,n,t];
  30 }
  31
  32 Tests.setup = function(gl, prog, v,n,t) {
  33   assert(0 == gl.getError());
  34   return [gl, prog, v,n,t];
  35 }
  36 Tests.teardown = function(gl, prog, v,n,t) {
  37   gl.disableVertexAttribArray(v);
  38   gl.disableVertexAttribArray(n);
  39   gl.disableVertexAttribArray(t);
  40 }
  41
  42 Tests.endUnit = function(gl, prog, v,n,t) {
  43   prog.destroy();
  44 }
  45
  46
  47 Tests.testVertexAttrib = function(gl, prog, v,n,t) {
  48   var vbo = gl.createBuffer();
  49   var vertsArr = new Float32Array(verts);
  50   gl.bindBuffer(gl.ARRAY_BUFFER, vbo);
  51   gl.bufferData(gl.ARRAY_BUFFER, vertsArr, gl.STATIC_DRAW);
  52   gl.enableVertexAttribArray(v);
  53   gl.vertexAttribPointer(v, 3, gl.FLOAT, false, 0, 0);
  54   assertFail("bad index",
  55       function(){gl.vertexAttrib1f(-1, 1);});
  56   assertFail("bad index (big negative)",
  57       function(){gl.vertexAttrib1f(-69092342, 1);});
  58   assertFail("bad index (big positive)",
  59       function(){gl.vertexAttrib1f(58928938, 1);});
  60   assertOk("array too large",
  61       function(){gl.vertexAttrib1fv(v, [1,2,3,4,5]);});
  62   assertFail("array too small",
  63       function(){gl.vertexAttrib1fv(v, []);});
  64   assertOk("draw",
  65       function(){gl.drawArrays(gl.TRIANGLES, 0, 3);});
  66   throwError(gl);
  67 }
  68
  69 </script>
  70 <script id="vert" type="x-shader/x-vertex">
  71   attribute vec3 Vertex;
  72   attribute vec3 Normal;
  73   attribute vec2 Tex;
  74
  75   varying vec4 texCoord0;
  76   void main()
  77   {
  78     gl_Position = vec4(Vertex * Normal, 1.0);
  79     texCoord0 = vec4(Tex,0.0,0.0) + gl_Position;
  80   }
  81 </script>
  82 <script id="frag" type="x-shader/x-fragment">
  83   precision mediump float;
  84
  85   varying vec4 texCoord0;
  86   void main()
  87   {
  88     vec4 c = texCoord0;
  89     gl_FragColor = c;
  90   }
  91 </script>
  92
  93
  94 <style>canvas{ position:absolute; }</style>
  95 </head><body>
  96   <canvas id="gl" width="1" height="1"></canvas>
  97 </body></html>